Cold-mixing and cold-paving asphalt mixture and preparation method thereof

A technology of cold laying asphalt and mixture, applied in the field of asphalt pavement engineering, can solve the problems of high pollution, high labor, high cost, etc., and achieve the effects of improving fatigue resistance, prolonging service life, and increasing supply range

Inactive Publication Date: 2015-06-03
SICHUAN NAILISI NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cold-mixed and cold-paved materials currently on the market are seriously affected by the external temperature when paving roads, and there are also problems of high cost, high labor, and high pollution, and cannot be used in large quantities in projects; During the preparation, the selection of aggregates, the preparation and dosage of additives all have a great influence on the preparation of cold mix and cold paving asphalt mixture.

Method used

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  • Cold-mixing and cold-paving asphalt mixture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method for cold-mixed cold paving asphalt mixture, comprising the following steps:

[0024] (1) Crush the granite into two kinds of stones with a particle size of 5-10mm and 2.3-5mm, and then weigh 7330kg of stones with a particle size of 5-10mm, 1800kg of stones with a particle size of 2.3-5mm, and a particle size of 0.1 - 300kg of 2.3mm quartz sand, 100kg of mineral powder ground into limestone with a particle size of less than 0.075mm, mixed evenly, dried to make the water content less than 15%, cooled to room temperature to obtain aggregate, and set aside;

[0025] (2) Heat 470kg of asphalt to 130-150°C;

[0026] (3) Add the additive to the asphalt and stir evenly;

[0027] Wherein, the additive amount is 9.3% of the asphalt additive amount; the additive is composed of the following components and the parts by weight of each component are: 20 parts of cyclobutane, 5 parts of polyethylene, 1 part of terpene resin, 74 parts of diesel oil ;

[0028] (4...

Embodiment 2

[0030] A preparation method for cold-mixed cold paving asphalt mixture, comprising the following steps:

[0031] (1) Crush the granite into two kinds of stones with a particle size of 5-10mm and 2.3-5mm, and then weigh 7330kg of stones with a particle size of 5-10mm, 1800kg of stones with a particle size of 2.3-5mm, and a particle size of 0.1 - 300kg of 2.3mm quartz sand, 100kg of mineral powder ground into limestone with a particle size of less than 0.075mm, mixed evenly, dried to make the water content less than 15%, cooled to room temperature to obtain aggregate, and set aside;

[0032] (2) Heat 470kg of asphalt to 130-150°C;

[0033] (3) Add the additive to the asphalt and stir evenly;

[0034] Wherein, the addition amount of the additive is 10% of the bitumen addition amount; The additive is made up of the following components and the parts by weight of each component are: 20 parts of cyclobutane, 5 parts of polyethylene, 1 part of terpene resin, 74 parts of plastic oil ...

Embodiment 3

[0037] A preparation method for cold-mixed cold paving asphalt mixture, comprising the following steps:

[0038] (1) Crush the granite into two kinds of stones with a particle size of 5-10mm and 2.3-5mm, and then weigh 7330kg of stones with a particle size of 5-10mm, 1800kg of stones with a particle size of 2.3-5mm, and a particle size of 0.1 - 300kg of 2.3mm quartz sand, 100kg of mineral powder ground into limestone with a particle size of less than 0.075mm, mixed evenly, dried to make the water content less than 15%, cooled to room temperature to obtain aggregate, and set aside;

[0039] (2) Heat 470kg of asphalt to 130-150°C;

[0040] (3) Add the additive to the asphalt and stir evenly;

[0041] Wherein, the addition amount of the additive is 12% of the asphalt addition amount; the additive is composed of the following components and the parts by weight of each component are: 20 parts of cyclobutane, 5 parts of polyethylene, 1 part of terpene resin, naphtha 74 copies;

...

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Abstract

The invention discloses a cold-mixing and cold-paving asphalt mixture. The cold-mixing and cold-paving asphalt mixture comprises the following components in parts by weight: 70-74 parts of stone material with the grain size of 5-10 mm, 18-21 parts of stone material with the grain size of 2.3-5 mm, 0.5-3 parts of quartz sand with the grain size of 0.1-2.3 mm, 0.5-1 parts of mineral powder with the grain size less than 0.075 mm, 4.5-6 parts of asphalt and 0.4-0.9 parts of additive. The preparation method comprises the following steps: (1) mixing the weighed stone materials, the quartz sands and the mineral powder and drying till the water content is less than 15% to obtain the aggregate for use; (2) heating the weighed asphalt to 130-150 DEG C; (3) mixing the weighed additive and the asphalt and stirring uniformly; (4) mixing the asphalt mixed with the additive and the aggregate obtained from step (1), and stirring uniformly to obtain the cold-mixing and cold-paving asphalt mixture. The cold-mixing and cold-paving asphalt mixture has the advantages of low cost, simple preparation process and no pollution, and has a wide application advantage.

Description

technical field [0001] The invention belongs to the field of asphalt pavement engineering, and in particular relates to a cold-mixed and cold-paved asphalt mixture and a preparation method thereof. Background technique [0002] Cold-mixed asphalt mixture is a new type of asphalt material, which brings great convenience in pavement laying and maintenance, and has important practical significance. The cold-mixed and cold-paved materials currently on the market are seriously affected by the external temperature when paving roads, and there are also problems of high cost, high labor, and high pollution, and cannot be used in large quantities in projects; During preparation, the selection of aggregates, the preparation and dosage of additives all have a great influence on the preparation of cold mix and cold pavement asphalt mixture. Contents of the invention [0003] The present invention provides a kind of cold mixing and cold laying asphalt mixture and its preparation metho...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B14/02C04B14/06
Inventor 郭本金齐学思
Owner SICHUAN NAILISI NEW MATERIAL TECH
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